What is true and how can we know?
In conversation with many people of faith and accommodationists, I often face a postmodern notion I find deeply disturbing: a claim that what’s true is in the eye of the beholder – whether a believer or non believer. The notion of respecting reality to be any kind of arbiter for claims about reality seems to be a trivial point for many believers when discussing metaphysical notions while the liberal use of the term ‘truth’ in its supposed multiple guises falls off the tongue with ease when they unfailing apply these same notions to matters OF reality.
Such an assumption about the nature of what’s true – to afford the believer a way to effortlessly cross this line of demarcation between the metaphysical and the physical – allows subjective faith claims about god to be presented as equally valid ‘truths’ that somehow compete successfully with the scientific sense of the word ‘truths’ about physical reality. This is a bait and switch tactic, of course, in that a scientific truth is different in meaning than a faith-based assumption. The relativist would have us accept that each of us can subjectively assign the word ‘truth’ to whatever claim we want to believe and that this has no significant and detrimental affect on what we can know is true for all. The common misapplication is that something can be true for some but not for others in matter within this universe, such as jesus really, really, really was the son of god and performed miracles… as if each of us has a separate and distinct claim that is equally valid merely because we assign belief or lack of belief to it. But conclusions held to be true in the scientific sense of the word do not work this way.
As Jerry Coyne writes over at WEIT
Different theologies have different “answers,” and even within a single faith different people diverge in their notion of religious “truth.” In contrast, scientists—regardless of religious creed, ethnicity, or nationality—converge on single, agreed-upon answers (of course there is still scientific disagreement about many cutting-edge issues). Water has two hydrogen and one oxygen molecules whether you’re a chemist in Africa, Eurasia, or America. DNA in the nucleus is a double helical molecule consisting of sugars and nucleotide bases. Evolution is a fact for scientists in every land, for they can all examine the massive evidence supporting it. There are many faiths; but there is only one science. The fact that different people from different backgrounds converge on the same scientific answers also implies that there really are objective truths about the universe.
And truths about reality that can be known, I will add.
Also, we need to recognize that a lack of evidence for certain faith-based truth claims about reality has an important bearing on the equivalency of faith-based beliefs and scientific conclusions that are at odds. And nowhere is this more evident than in the dishonest presentation of evolution by agenda-driven supporters of certain theologies as just another kind of belief similar to a faith-based one. This is an intentional misrepresentation – what many of us legitimately call ‘Lying for Jesus’ – of what is true in reality and an organized attempt to discredit the scientific method in this matter only to serve those who wish to pretend that reality in this matter only has no bearing on what we can know about its truth. These self appointed lovers of science in all other matters do not find this theologically driven hypocrisy to be disturbing to their equilibrium of intellectual integrity. Theology in this sense can be seen to exercise its power of selective anesthesia.
This use of the term ‘truth’ based on a shared materialistic and physical reality (existing separate from our subjective wishes but in which we are immersed) decries the believer’s failed postmodern notion that all truths are subjective. In contrast to a scientific ‘truth’ that recognizes the submission of what is true to the constraints of reality – that we recognize and test through evidence found in reality and not what we simply believe or wish to be true - if there were objective truth about God (and his nature and intentions and desires and expectations revealed to believers through revelation), scriptural authority, explanatory dogma we should find believers to be of the same faith. That within christianity we find well over 30,000 different sects should be seen as very strong evidence recognizable even by the postmodernists and other faith-based believers that subjective truth claims are not true in any reality-based and meaningful way comparable to a scientific truth claim. The word ‘truth’ is being abused by relativists-with-an-agenda where its central meaning – being in accord with a particular fact or reality – is simply ignored in order to co-opt its scientific sense for the believer’s own and dishonest purposes.